Vacuum-creamer



(No Model.)

G. WATERHOUSE.

v VACUUM GREAMBR. No. 260,070. Patented June 27, 18 82.

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UNITED STATES PATENT OFFICE.

ADDISON e. WATERHOUSE, on NEW YORK, N. Y., ASSIGNOR T CHARLES R.GALLATT, or PORTAGE, wIsooNsIN.

VACUUM-CREAMER.

SPECIFICATION forming part of Letters Patent No. 260,070, dated June2'7, 1882.

Application filed November 29, 1881. (No model.)

To all whom it may concern Be it known that I, ADDIsoN G. WATER- HOUSE,of the city and State of New York, have invented a new and usefulImprovement 5 in Vacuum-Oreamers,.of which the following is aspecification.

The invention relates to that class of creamextractors used in theprocess of extracting cream from milk by placing the milk in an airtightchamber, and by exhausting the air from the chamber containing the milkdraws all the impure gases from the milk and causes the cream to riseupon its surface.

The invention consists of an air-tight chamher provided with a suitableopening for the introduotion'of cans containing milk, together with aturning or movable floor, upon which the cans containing milk areplaced, and so arranged that the cans containing milk can be moved toand from the opening by turning or moving the floor upon which theyrest.

The object of this invention is as follows: First, the cans can bedistributed over all parts of a large chamber after introducing themthrough a small opening in the top of the chamber; second, it does awaywith the necessity of removing the whole top of the chamber by enablingthe cans to be introduced and distributed or taken out through a smallopening, which is easily closed air-tight by means of a cover properlyconstructed, which, being light and small, is more easily handled,secured, or removed; third, by having the cans placed upon a turningormovable floor the cans 5 can be moved about in the cooling liquid ormaterial, which in this process is generally used by turning the floorafter the air has been extracted from the chamber.

In the accompanying drawings, Figure 1 is an air-tight chamber, It, witha cover or top plate, L, tightly secured to the chamberR by means ofsuitable bolts or screws with intervening packing. Inside of the chamberR is a turn-table or revolving floor, T, rigidly con- 5 neoted to theupright rotatingshaft e,pivoted at the bottom in the center of thechamber R, and at the top having a bearing in the plate L, so that thefloorT is free to move or rotate. In the top or plate L is an opening,d, which is covered by the plate 0, securely fastened to L, withintervening packing, so as to form an air-tight joint. The opening cl isjust large enough to allow the milk-cans m to pass through when the cap0 is removed, so that by passing the cans at through the opening andset- 5 ting them upon the floor T and turning the floor until each canmoves awayfrom the opening, the floor can be entirely covered with cans,and,the reverse, by turning the floor each can can be brought to theopening and taken out. The chamber R is provided with an air-pump, P,which can either be placed upon the top L or elsewhere, and by beingconnected by pipes that enter the chamber at or near the top be used todraw out the air therefrom. f is a cock used to draw the cooling-liquidfrom the chamber, which liquid is used to surround the cans m for thepurpose of keeping the milk in them cool while the air is beingexhausted from the chamber for the purpose of extracting the cream fromthe milk in the cans.

Fig. 2 is another form of chamber,in which a revolving tank, 70, is usedin place of the floor T, as in Fig. 1, which tank is is adapted toreceive milk or milk-cans through opening cov- 7 5 ered by plate 0. Thecooling-liquid can be drawn off through the central pipe, i, providedwith cook 00, which pipe, passing through a stuffing-box, s, is free toturn, and with it the tank It.

In operation it is generally necessary to have cooling materialintroduced'around the milkcans m, and for such purpose either ice, snow,or cool liquid may be used.

I do not confine myself to the exact form of mechanism shown, nor to thelocation or use of the pump P, for in place of the pump any method maybe employed to exhaust the air from the chamber R, together with thegases rising from the milk contained therein. In some cases, where it isnecessary to rotate or remove the floor while the cap 0 is closed andthe air is exhausted from R, I extend the shaft 0 through a packing-boxeither at the top or bottom of the chamber, so that by turning the 5projecting shaft a corresponding movement is imparted to the floor T.Nor is it necessary to have the chamber R with a cover, L, for the topof the chamber may be cast or made a part of the same, and the openingclbe made through that part that forms the top.

I do not wish it to be understood that I claim broadly the revolvingfloor Within a chamber, as I know that the same is now used in manyforms for other purposes.

What I claim as my invention is- 5 For a vacuum cream-extractor, anair-tight chamber, R, provided with an air-tight cap, I 0, made to fitthe opening d, said chamber R being provided with a turning floor, T,secured to an upright shaft made to revolve in bearings within thechamber B, said chamber be- I0 ing adapted to receive the milk-cans m,together with suitable refrigerating material, all arrangedsubstantially as and for the purposes set forth.

ADDISON G. VVATERHOUSE. Witnesses:

E. PERCY TEAL, J. F. HURDLE.

